This week sees medley madness in full swing. Launched by the unexpected success of Stars On 45’s Medley… in June of 1981, a number of other artists released medley singles over the next year. They ranged from oldies rehashes to disco-style mashups of music from other genres. In all, seven medley singles reached the Top 40 during this one-year span. While other medleys (often song pairs like The Spinners favored) have hit the charts, this was by far the richest — and perhaps oddest — collection of the genre.

Three of them shared the Hot 100 this week, with Meco at #39, the Beatles at #50, and Stars On 45 at #71.

Here’s a list of all the medley hits:

Medley, Stars On 45, #1 June 1981

Hooked On Classics, Royal Philharmonic Orchestra, #10 January 1982

The Beach Boys Medley, The Beach Boys, #12 October 1981

The Beatles Movie Medley, The Beatles, #12 May 1982

Stars On 45 III: A Tribute to Stevie Wonder, Stars On 45 #28, May 1982